One vertex per element, one color per generator, with an edge from x to x·s.
(3,7)(6,8)(9,10,13,12)(11,14,16,15)(18,22)(19,25)(20,27)(30,32)(33,34,37,38)(35,41,42,39)(36,40,44,46)(43,48,45,47)(9,10,13,12)(11,15,16,14)(19,25)(23,28)(26,31)(30,32)(34,38)(35,42)(36,44)(47,48)(1,2,5,4)(3,6,7,8)(9,11,13,16)(10,14,12,15)(17,18,21,22)(19,23,25,28)(20,24,27,29)(26,30,31,32)(33,34)(35,41)(36,40)(37,38)(39,42)(43,48)(44,46)(45,47)(1,3,5,7)(2,6,4,8)(9,10,13,12)(11,14,16,15)(17,19)(18,23)(20,26)(21,25)(22,28)(24,30)(27,31)(29,32)(33,35)(34,39)(36,45)(37,42)(38,41)(40,48)(43,44)(46,47)(1,4,5,2)(3,8,7,6)(9,12,13,10)(11,15,16,14)(17,20)(18,24)(19,26)(21,27)(22,29)(23,30)(25,31)(28,32)(33,36)(34,40)(35,43)(37,44)(38,46)(39,47)(41,48)(42,45)A Cayley diagram is a choice, not a fact about the group. Another drawing of this group — in a book, or on a different generating set — may look nothing like this one.